There are five grades of Chinese character chop: tough bronze, unruly silver, ingenious gold, extremely clever Venus, and learned crystal. Among them, reaching the level of extremely intelligent Venus is already a leader in the number of words.
The upgrading mode of Chinese character chop is mainly based on the mastery of words. You need to recite 10 thousand words to reach the erudite crystal. Now the memory of the first few words on the list has reached 40 thousand to 50 thousand.